Table I.

Research diagnostic criteria for insomnia

To meet research diagnostic criteria for general insomnia the individual must meet each of the three criteria below²:
Reports at least one of the following sleep related complaints: (a) difficulty initiating sleep (b) difficulty maintaining sleep (c) waking up too early, or (d) sleep that is chronically nonrestorative or poor in quality. The sleep difficulty occurs despite adequate opportunity and circumstances for sleep. Experience at least one of the following forms of daytime impairment related to the nighttime sleep difficulty: (a) fatigue/malaise (b) attention, concentration, or memory impairment (c) social/vocational dysfunction or poor school performance (d) mood disturbance/irritability (e) daytime sleepiness (f) motivation/energy/initiative reduction (g) proneness for errors/accidents at work or while driving (h) tension headaches, and/or GI symptoms in response to sleep loss; or (i) concerns or worries about sleep.

To meet research diagnostic criteria for general insomnia the individual must meet each of the three criteria below²:

Reports at least one of the following sleep related complaints:
- (a) difficulty initiating sleep
- (b) difficulty maintaining sleep
- (c) waking up too early, or
- (d) sleep that is chronically nonrestorative or poor in quality.
The sleep difficulty occurs despite adequate opportunity and circumstances for sleep.
Experience at least one of the following forms of daytime impairment related to the nighttime sleep difficulty:
- (a) fatigue/malaise
- (b) attention, concentration, or memory impairment
- (c) social/vocational dysfunction or poor school performance
- (d) mood disturbance/irritability
- (e) daytime sleepiness
- (f) motivation/energy/initiative reduction
- (g) proneness for errors/accidents at work or while driving
- (h) tension headaches, and/or GI symptoms in response to sleep loss; or
- (i) concerns or worries about sleep.